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    18 Products

    Shims for Shortening Screw Shoulders

    Image of ProductInUse. Front orientation. Contains Annotated. Shims. Shoulder Shortening, Sold Individually, Round.
    Image of Product. Front orientation. Shims. Shoulder Shortening, Sold Individually, Round.
    Pare down the shoulder on shoulder screws. Slide these shims under the screw head to create the length you need. Use them to tighten the hold on bearings, pulleys, and sprockets, or shorten the length of travel along the shoulder.
    You can stack multiple shims to achieve the exact shoulder length or space you need.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these shims resist rust. However, they’ll corrode or pit when exposed to salt water and chemicals.
    Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these shims won't degrade when exposed to harsh weather, salt water, and most chemicals.
    Stress-Resistant Spring Steel—These shims are harder and hold their shape better than carbon steel. Use them for high-stress applications, such as leveling heavy machinery. They're best for dry environments since moisture will cause them to rust.
    Thk.
    Thk. Tolerance
    For Screw
    Size
    ID,
    mm
    ID Tolerance,
    mm
    OD,
    mm
    OD Tolerance,
    mm
    Min.
    Hardness
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    For 8 mm Diameter Shoulder
    0.005"-0.0005" to 0.0005"M8
    		80 to 0.2512.73-0.25 to 0Rockwell B701091437A248000000
    0.01"-0.001" to 0.001"M8
    		80 to 0.2512.73-0.25 to 0Rockwell B701091437A25500000
    0.015"-0.001" to 0.001"M8
    		80 to 0.2512.73-0.25 to 0Rockwell B701091437A26300000
    0.02"-0.0015" to 0.0015"M8
    		80 to 0.2512.73-0.25 to 0Rockwell B701091437A26900000
    0.025"-0.0015" to 0.0015"M8
    		80 to 0.2512.73-0.25 to 0Rockwell B701091437A27400000
    0.031"-0.002" to 0.002"M8
    		80 to 0.2512.73-0.25 to 0Rockwell B70591437A2780000
    0.062"-0.002" to 0.002"M8
    		80 to 0.2512.73-0.25 to 0Rockwell B701091437A28200000
     
    Highly Corrosion-Resistant 316 Stainless Steel
     
    For 8 mm Diameter Shoulder
    0.005"-0.0005" to 0.0005"M8
    		80 to 0.2512.73-0.25 to 0Rockwell B701096945A12000000
    0.01"-0.001" to 0.001"M8
    		80 to 0.2512.73-0.25 to 0Rockwell B701096945A18000000
    0.031"-0.003" to 0.003"M8
    		80 to 0.2512.73-0.25 to 0Rockwell B701096945A2500000
     
    Stress-Resistant Spring Steel
     
    For 8 mm Diameter Shoulder
    0.005"-0.0005" to 0.0005"M8
    		80 to 0.2512.73-0.25 to 0Rockwell C40592927A5550000
    0.01"-0.001" to 0.001"M8
    		80 to 0.2512.73-0.25 to 0Rockwell C40592927A5590000
    0.015"-0.001" to 0.001"M8
    		80 to 0.2512.73-0.25 to 0Rockwell C401092927A9120000
    0.02"-0.002" to 0.002"M8
    		80 to 0.2512.73-0.25 to 0Rockwell C401092927A91800000
    0.031"-0.003" to 0.003"M8
    		80 to 0.2512.73-0.25 to 0Rockwell C401092927A9250000
    0.06"-0.004" to 0.004"M8
    		80 to 0.2512.73-0.25 to 0Rockwell C40592927A9320000
     

    Dry-Running Panel-Mount Sleeve Bearings

    Image of Product. Front orientation. Mounted Bearings. Dry-Running Panel-Mount Sleeve Bearings.
    Leave the lubricant in the supply closet—these low-maintenance sleeve bearings are made from naturally slippery plastic. They'll keep shafts spinning with no messy grease to drip off, wash out, or collect dust. With no moving parts, sleeve bearings withstand grimy environments better than ball bearings. However, with more friction generated, they're less effective at high speeds. They mount securely in thin panels.
    Acetal—The most common choice for plastic bearings, acetal is wear-resistant and affordable.
    Ultra-Low-Friction PTFE-Filled Acetal—Made from a special blend of acetal and PTFE, these extra-slippery bearings are ideal for conveyors and other machinery with frequent starts and stops.
    Steel Housing—Best for dry environments as moisture will cause them to rust.
    Press-Fit Panel Mount—Press these bearings into plastic panels or thin sheet metal to mount them by hand. They're a good fit for tight spaces, or if you'd like a removable mounting option. The sturdy flange prevents bearings from pulling through, giving you added stability.
    Misalignment Capability—Bearings compensate for as much shaft misalignment as the degree listed. This extends the life of the bearing and protects against wear if shafts are slightly askew.
    For Shaft
    Dia., mm
    OD,
    mm
    Wd.,
    mm
    Flange
    OD, mm
    Flange
    Thk., mm
    Dynamic Radial Load
    Cap. @ Speed
    Misalignment
    Capability
    Each
    Acetal Bearing with Steel Housing
     
    Press-Fit Panel Mount
    612.739.614.20.836 lb. @ 120 rpm5°5168N16000000
     
    Ultra-Low-Friction PTFE-Filled Acetal Bearing with Steel Housing
     
    Press-Fit Panel Mount
    612.739.614.30.880 lb. @ 120 rpm5°5169N1600000
     
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